I really agree with a lot of people on here regarding things I've read in the past about Pennzoil Platinum. For the first time I used PP 5w30 in my '00 Volvo V70 and my engine has never sounded so quiet when starting on a cold day. It even sounds a little quieter when its warmed up, too. Oils I have used before are Valvoline Maxlife, Quaker State Synthetic, Amsoil, and maybe another I can't remember. But seriously, Pennzoil Platinum is great stuff, I think this is my new favorite oil. A friend of mine bought the PP for his BMW and then decided he wanted to go with what BMW recommended instead, so I bought the PP from him. Otherwise I would probably still be using Maxlife. Maybe I'm crazy but I think PP is the best oil I've ever tried in this car, so I'm gonna keep using it. Expect a UOA in the spring!